ATLANTA — A judge tacked another year and three months onto the sentence of a federal inmate who escaped from prison to celebrate his birthday.

Federal prosecutors said Wednesday 36-year-old Fernando A. Settles of Augusta escaped from the minimum-security camp at the U.S. Penitentiary in Atlanta in May.

Settles was sentenced in 2009 to serve 20 years in prison after he was convicted of drug trafficking offenses. He was scheduled for release in July 2025.

The FBI and Atlanta police have been investigating instances of federal inmates temporarily escaping from the prison camp to get contraband items to bring back or to visit nearby restaurants, hotels and homes.

They were conducting surveillance when Settles escaped around 3:20 a.m. on May 8. The FBI arrested him in a wooded area outside the fence.